BIO210L Lab 6 The Skeletal System[ALL ANSWERS 100% CORRECT] PRE-LAB Q&A

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Lab 6 The Skeletal System BIO201L Student Name: Latoya Tulloch Access Code (located on the lid of your lab kit): AC-7JYMXQH Pre-Lab Questions: ”1. List the functions of the skeletal system.” T... he five major functions of the skeletal system is ; provision of support tot he body so it can stand upright, protection of vital organs like lungs and the heart, enable movement and walking , storage of mineral like calcium and facilitate the production of blood cells.” 2. What material contributes the greatest to the compressive strength of bone? ” The main component of the bone is calcium carbonate, it greatly ontributes tot he strength of bones.” 3. Briefly describe the process of bone remodeling. ” The final stage of bone remodelling is its repair. It occurs when the woven bone is replaced for another compact bone. As a result, ist medullary cavity is repaired and portion of interior calllus is elliminated. Experiment 1: Classification of Bones Table 6: Classification of Bones Bone Name Classification by Shape Classification by Location carpel short appendicular femur Long appendicular radius long appendicular ulna long appendicular tibia long appendicular tarsal short appendicular vertebrae irregular axial sternum flat axial frontal flat axial temporal flat axial Post-Lab Questions ”1. Why is it important to classify bones? ” Lab 6 The Skeletal System BIO201L Bone classification facilitates bone identification. They are typically recognized by length, form and other characteristics. Bone classification permits easier collaboration between reseachers and doctors.” 2. Aside from length, what are some other common characteristics of a long bone? Are long bones typically associated with the axial or appendicular skeleton? ” The longest bones are contained in the appendicular skeleton. Long bones are characterised both as dense/compact and spongy. The ends of long bones are spongy and alos contains articular cartillages. ” 3. Compare flat bones and long bones. How are they different? How are they the same? ” Comparison: both flat and long bones contains the spongy bone in them, both facilitates motion though movement by short bones is limited Diferences: flat bones facilitates protection of internal organs while longs bones permits mobility of body. Flat bones are sugestively flat while long bones are long. Experiment 2: Digital Slide Image Examination—Bone Post-Lab Questions ”1. Label the arrows in the following digital slide images: ” ”Cortical Bone: ” A- interstitial lamellae B- haversian system C- concentric lamellae D- haversian canals ”Trabecular Bone: ” A- trabeculae B- marrow cavity Lab 6 The Skeletal System BIO201L Lab 6 The Skeletal System BIO201L ”2. Compare and contrast cortical and trabecular bone. ” Comparison: Both trabecular and cortical bones are contained in the shaft of long bones and contains similar cell types. Differences: trabercular bones are spongy/ porous while the cortical bones are dense ”3. What is the purpose of cortical bone? What is the purpose of trabecular bone? ” It is found in the compact bones and functions as a protective layer. It allows for resistance and weight bearing. The trabercular bones are characterised with pores, its primary purpose is providing resistance to stress during physical activities. It also provides strength and support. ”4. What are trabeculae? What is their function? ” They are types of support. They facilitates structural support for other bones in the body. They are thought of and compared to roof beams and wall studs ”5. What are haversian systems? What is their function? ” It is also refered tot he osteons. They are defined as encircled tunnels that share a common central point. They connect with osteocytes and protects the nerve fibers and blood vessels. [Show More]

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